Women A story on Instagram: "In 1893, Annie Jump Cannon did something no one else in history has matched. She classified over 350,000 stars by hand, working plate by plate, night after night. Annie was deaf. She was paid less. She was excluded from meetings where her own work was discussed. Still, she built the stellar classification system astronomers use to this day … the backbone of modern astronomy. Every star labeled O, B, A, F, G, K, or M traces back to her work. Men didn’t improve her sys